5-way powered emergency world band radio Solar power: Supplies power to the radio or charges the internal NiMH 5V DC USB: Supplies power to the radio or charges the internal NiMH battery (USB cable not included) Battery power: AAA x 3 (not include) Dynamo generator: Supplies power to the radio or charges the internal NiMH Rechargeable battery: Supplies power to the radio & stores power, 3.7V/500mAh The Kaito KA322W is designed for both everyday use & emergency preparedness applications. It offers different methods to keep you informed including DC 5V USB, three AAA batteries (not included), the built-in rechargeable Li-ion battery that can be charged by an adapter, hand cranking or the solar panel. The KA322W covers a wide spectrum of broadcasting including AM, FM and all 7 NOAA weather channels. The radio features a standard USB port to be used to charge cell phones or other USB compatible portable devices. With its revolutionary design and versatile functions, it’s not only an ideal choice of a portable receiver but also an indispensable tool for emergency preparedness purposes, travelling, camping, backpacking and other outdoor activities. Specifications: FM: 88 – 108 MHz AM: 520 -1710 KHz # of NOAA Weather Channels: 7 Internal speaker Headset jack socket: 3.5 mm 5V DC input: micro USB 5V DC output: standard USB Rechargeable batteries: 3.7V Li-ion battery 500 mAh Dimensions: 6 x 2? X 2 inches Weight: 7.6 oz